Processing method capable of improving weather resistance of wear-resistant fishing net

A processing method and weather resistance technology, applied in the direction of conjugated synthetic polymer artificial filament, etc., can solve the problems of increased economic cost, insignificant increase in wear resistance, uneven force on nets, etc., and achieve improved friction resistance Creep resistance, improved anti-friction stability, and good mechanical properties

Inactive Publication Date: 2018-04-06
CHAOHU LOTUS FISHING NET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of fishing nets, they are damaged due to severe friction with metal and non-metallic materials such as stones, cement, steel, plastics, etc. The scrapping and damage of the nets mainly come from wear and tear, so the service life mainly depends on the wear resistance of the nets. Performance, the existing polyethylene fishing net mainly improves the wear resistance by increasing the twist of the fishing net during twisting, which can improve the wear resistance of the fishing net by about 15-20%, and the twist of the fishing net line needs to be increased by 30% The biggest defect of high-viscosity polyethylene fishing net internal twist and external twist is that the breaking strength of the fishing net will lose 20-30%. The manufacturing cost is increased, and the use cost of the net is increased. At the same time, the elongation percentage of the high-viscosity fishing net is relatively large, and the net is easily deformed or broken due to uneven force, and the use and fishing effect is poor. The waste of power and fuel caused by the high resistance of the tugboat will also indirectly increase the economic cost. The existing technology has some solutions for the above problems, but the increase in wear resistance is not obvious, and under sunlight, Its performance loss is obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A processing method for improving the weather resistance of wear-resistant fishing nets, comprising the following steps:

[0014] (1) In parts by weight, take 40 parts of polyethylene adipate, 4 parts of castor oil, and 1.5 parts of sodium polyacrylate into the reaction kettle for mixing, stir and heat up to 100°C, and dropwise add 11 parts of toluene The diisocyanate was added dropwise within 20 minutes. After maintaining the temperature and stirring for 1.5 hours, the temperature was lowered to 85°C, and then 1.5 parts of hexamethylene diisocyanate and 3.5 parts of styrene were added. After stirring for 1.5 hours, the temperature was lowered to normal temperature. Obtain polyester type polyurethane prepolymer;

[0015] (2) In parts by weight, 14 parts of nano-magnesium hydroxide, 1.5 parts of castor oil, 1.5 parts of liquid hyperbranched epoxy resin HTME-2, and 1.5 parts of cyanogen halide were added to the reaction kettle. Down stirring reaction 2.5 hours, obtain re...

Embodiment 2

[0020] A processing method for improving the weather resistance of wear-resistant fishing nets, comprising the following steps:

[0021] (1) In parts by weight, take 38 parts of polyethylene adipate, 2 parts of castor oil, and 1 part of sodium polyacrylate into the reaction kettle for mixing, stir and heat up to 105°C, and dropwise add 12 parts of toluene Add diisocyanate dropwise within 20 minutes, keep the temperature and stir for 2 hours, then cool down to 80°C, then add 1 part of hexamethylene diisocyanate and 4 parts of styrene, keep stirring for 1 hour, then drop to normal temperature, Obtain polyester type polyurethane prepolymer;

[0022] (2) In parts by weight, 12 parts of nano-magnesium hydroxide, 2 parts of castor oil, 1 part of liquid hyperbranched epoxy resin HTME-2, and 2 parts of cyanogen halide are added to the reaction kettle, and the temperature is 75 ° C. Down stirring reaction 3 hours, obtain reaction material;

[0023] (3) In parts by weight, mix 50 part...

Embodiment 3

[0026] A processing method for improving the weather resistance of wear-resistant fishing nets, comprising the following steps:

[0027] (1) In parts by weight, take 42 parts of polyethylene adipate, 6 parts of castor oil, and 2 parts of sodium polyacrylate into the reaction kettle for mixing, stir and heat up to 115°C, and dropwise add 10 parts of toluene Add diisocyanate dropwise within 20 minutes, keep the temperature and stir for 1 hour, then cool down to 90°C, then add 2 parts of hexamethylene diisocyanate and 3 parts of styrene, keep stirring for 2 hours, then drop to normal temperature, Obtain polyester type polyurethane prepolymer;

[0028] (2) In parts by weight, add 16 parts of nano-magnesium hydroxide, 1 part of castor oil, 2 parts of liquid hyperbranched epoxy resin HTME-2, and 1 part of cyanogen halide into the reaction kettle. Down stirring reaction 2 hours, obtain reaction mass;

[0029] (3) In parts by weight, mix 60 parts of ultra-high molecular weight polye...

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PUM

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Abstract

The invention belongs to the technical field of processing of a wear-resistant fishing net and particularly relates to a processing method capable of improving weather resistance of the wear-resistantfishing net. The processing method comprises preparation of a polyester type polyurethane prepolymer, preparation of reaction materials and preparation of filaments. Compared with the prior art, theprocessing method has the advantages as follows: the weather resistance and anti-friction stability of the fishing net can be improved due to preparation of the reaction materials, the anti-friction creep property of the fishing net can be improved due to addition of the polyester type polyurethane prepolymer, the reaction materials can effectively fill in gaps of a composite material, the wear resistance of the composite material can be improved, the storm resistance of the fishing net can be further improved by terminated isocyanate, the fishing net can keep good mechanical performance undersunlight and has certain antibacterial property and antifouling property, and the use benefits of the fishing net can be increased.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant fishing net processing, and in particular relates to a processing method for improving the weather resistance of wear-resistant fishing nets. Background technique [0002] During the use of fishing nets, they are damaged due to severe friction with metal and non-metallic materials such as stones, cement, steel, plastics, etc. The scrapping and damage of the nets mainly come from wear and tear, so the service life mainly depends on the wear resistance of the nets. Performance, the existing polyethylene fishing net mainly improves the wear resistance by increasing the twist of the fishing net during twisting, which can improve the wear resistance of the fishing net by about 15-20%, and the twist of the fishing net line needs to be increased by 30% The biggest defect of high-viscosity polyethylene fishing net internal twist and external twist is that the breaking strength of the fishing net wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F1/10
CPCD01F1/10D01F1/103D01F8/06
Inventor 陈世勤
Owner CHAOHU LOTUS FISHING NET
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